Title :
Wireless charging technology using magnetically coupled resonators
Author :
Kim, Yong-Hae ; Kang, Seung-Youl ; Cheon, Sanghoon ; Lee, Myung-Lae ; Zyung, Taehyoung
Author_Institution :
Digital Paper Technol. Res. Team, Electron. & Telecommun. Res. Inst., Daejeon, South Korea
Abstract :
We are successful to charge the iPod touch using magnetically coupled resonators. The wireless charging was possible within the distance variation within 10 cm. The signal was generated and amplified with the balanced power amplifier structure which is useful for isolating the reflected power near the operation frequency of 9.4 MHz. To reduce the size of the receiving part, we implanted the thin coil on the polycarbonate substrate using ultrasonic. The receiving circuits are made of rectifying circuit using Schottky diode and over voltage protection circuit.
Keywords :
Schottky diodes; inductive power transmission; mobile handsets; overvoltage protection; rectifying circuits; telecommunication power supplies; ultrasonic applications; Schottky diode; balanced power amplifier; frequency 9.4 MHz; iPod touch; magnetically coupled resonator; over voltage protection circuit; polycarbonate substrate; rectifying circuit; thin coil; ultrasonics; wireless charging technology; Acoustics; Nonlinear optics; Optical coupling; Optical propagation; Reliability; Synchronization; Voltage control; charging; magnetic; resonator; wireless;
Conference_Titel :
Telecommunications Energy Conference (INTELEC), 2011 IEEE 33rd International
Conference_Location :
Amsterdam
Print_ISBN :
978-1-4577-1249-4
Electronic_ISBN :
2158-5210
DOI :
10.1109/INTLEC.2011.6099712
